PART 5 A MONOGRAPH OF THE EXISTING CRINOIDS 457 



In the same year Dr. D. Dilwyn John recorded the species from the Belyica 

 collections made in 1897-99. Only a single broken specimen was present. 



In 1938, however, Dr. John listed a further 12 specimens from the collections of 

 the Discovery Investigations and in 1939 reported on the 177 specimens (119 of them 

 from a single station) collected by the B.A.N.Z.A.R. Expedition off the shores of 

 Antarctica. The largest of these have arms up to 200 mm. long and cirri of up to 90 

 segments and 90 mm. long. By contrast, the Scotia in 1902-04, obtained only a single 

 specimen of Anthometra in the Weddell Sea (Vaney and John, 1939). 



Subfamily PEROMETRINAE A. H. Clark 



Perometrinae A. H. CLARK, Proc. Biol. Soc. Washington, vol. 22, 1909, p. 176 (includes Perometra, 

 Erythrometra and Hypalomelra) ; Mem. Australian Mus., vol. 4, 1911, p. 725 (absent from Aus- 

 tralia); Crinoids of the Indian Ocean, 1912, p. 6 (number of East Indian genera also found in the 

 Atlantic; genera represented in the Atlantic by closely allied genera; genera exclusively confined 

 to the East Indies; number of East Indian species), p. 9 (absent from Australia), p. 25 (range; 

 51-140 fms.), p. 60 (in key); Bull. Inst. Oce'anogr. Monaco, No. 294, 1914, pp. 7, 8 (temperature 

 relations) ; Internat. Rev. gesamt. Hydrobiol. und Hydrogr., Leipzig, vol. 6, 1914, p. 5 and follow- 

 ing (Atlantic and corresponding Indo-Pacific genera); Journ. Washington Acad. Sci., vol. 4, 

 No. 19, 1914, pp. 559-563 (correlation of geographical and bathymetrical ranges) ; No. 20, p. 582 

 (relation of habitat to temperature); vol. 5, No. 4, 1915, pp. 126-134 (bathymetrical range; 

 phylogenetic and paleontological significance); Amer. Journ. Sci., vol. 40, 1915, p. 68 (detailed 

 philosophical discussion of bathymetrical range); Smithsonian Misc. Coll., vol. 65, No. 10, 1915, 

 p. 42 (phylogenetical study); Journ. Washington Acad. Sci., vol. 7, No. 5, 1917, p. 127 (includes 

 Perometra, Erythrometra and Hypalometra)', No. 16, p. 505 (in key), p. 507 (key to the included 

 genera); Unstalked crinoids of the Siboga-Exped., 1918, p. vii (not found by the Albatross in the 

 East Indies), p. 196 (in key), p. 233 (key to the included genera; Nanometra added since 1917); 

 Univ. Iowa Studies in Nat. Hist., vol. 9, No. 5, 1921, p. 12 (represented in the West Indies); 

 Smithsonian Misc. Coll., vol. 72, No. 7, 1921, p. 2. GISLN, Nova Acta Reg. Soc. Sci. Upsaliensis, 

 ser. 4, vol. 5, No. 6, 1922, pp. 7, 10, 80, 140, 142. A. H. CLARK, The Danish /rcgro//-Exped., 

 vol. 4, No. 5, Crinoidea, 1923, p. 49 (in key). GISLN, Zool. Bidrag. Uppsala, vol. 9, 1924, 

 pp. 91, 212, 232, 241. EKMAN, Zoogeographica, vol. 2, No. 3, 1934, pp. 328, 343 (zoogeographic 

 significance); Tiergeographie des Meeres, 1935, p. 66. GISLN, Kungl. Svenska Vet.-Akad. 

 Handl., ser. 3, vol. 17, No. 2, 1938, p. 15. JOHN, Rep. B.A.N.Z. Antarctic Res. Exped. 1929-31, 

 ser. B, vol. 4, pt. 6, 1939, p. 193. GISL^N, Lunds Univ. Arsskr., new ser., Avd. 2, vol. 40, No. 8, 

 1944, p. 54, footnote 1; Rep. Swedish Deep Sea Exped., vol. 2, Zool., No. 4, 1951, p. 55 (absent 

 below 1,000 meters). 



Diagnosis. -A subfamily of Antedonidae in which the cirrus sockets are closely 

 crowded and arranged irregularly or in several alternating transverse rows on a rounded 

 conical, low to moderately high, centrodorsal ; the cirri are rather long, with numerous 

 (25 to 55, but rarely less than 30) segments of which the proximal are somewhat elon- 

 gated and the short distal bear strong carinate dorsal processes or spines; the mid-dorsal 

 line of the usually prominent radials makes a wide angle with the dorsoventral axis; 

 PI is rather stout, composed of relatively few (usually 12, and never over 20) segments 

 of which all but the basal are moderately elongated; P 2 resembles P,, but is usually 

 smaller; it always differs from the genital pinnules; P a is frequently and PI sometimes 

 absent. The segments of the genital pinnules are never expanded. 



Geographical range.- -From southern and southwestern' Japan southward to the 

 Moluccas, Celebes and the Kei Islands, westward to Madagascar and from southeast 

 Australia; also in the West Indies off Havana, Cuba. 



